package com.chen.naisimall.ssoclient2.controller;


import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestTemplate;

import javax.servlet.http.HttpSession;
import java.util.ArrayList;

@Controller
public class HelloController {

    @Value("${sso.server.url}")
    String ssoServerUrl;


    @ResponseBody
    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }

    /**
     * 感知这次是在sooserver登录成功跳回来的
     * @param model
     * @param session
     * @param token 只要去ssoserver登陆成功就会带上
     * @return
     */
    @GetMapping("/boss")
    public String employees(Model model, HttpSession session,
                            @RequestParam(value = "token",required = false)String token){

        //
        if (!StringUtils.isEmpty(token)){
            //去ssoserver登录成功回来就会带上
            //TODO 1,去ssoserver获取当前token真正对应的用户信息
            RestTemplate restTemplate = new RestTemplate();
            ResponseEntity<String> forEntity = restTemplate.getForEntity("http://sso.com:8080/userInfo?token=" + token, String.class);
            String body = forEntity.getBody();
            session.setAttribute("loginUser",body);
        }

        Object loginUser = session.getAttribute("loginUser");
        if (loginUser == null){
            //没登录,跳转到登录服务器

            //跳转过去以后,使用url上的查询参数标识我们自己是哪个页面
            //redirect_url=http:client1.com:8081/employees
            return "redirect:"+ssoServerUrl + "?redirect_url=http://client2.com:8082/boss";
        }else {
            ArrayList<String> emps = new ArrayList<>();
            emps.add("张三");
            emps.add("李四");
            model.addAttribute("emps",emps);
            return "list";
        }
    }
}
